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Finding the Fourth Proportional to 554,419.92, 765,099 and 299,770.56

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Solution

The fourth proportional to 554,419.92, 765,099 and 299,770.56 is: 413,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,419.92 : 765,099 = 299,770.56 : x
  2. Step 2: Convert to fraction form
    554,419.92/765,099 = 299,770.56/x
  3. Step 3: Cross multiply
    554,419.92x = 765,099 × 299,770.56
  4. Step 4: Simplify right side
    554,419.92x = 229,354,155,685.44
  5. Step 5: Solve for x
    x = 229,354,155,685.44/554,419.92
  6. Step 6: Final answer
    x = 413,683.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.